redditor 로써 안갈 수 없어서 갔다. RabbitMQ 완전 대세 'ㅅ'?
- Pricing: moving to EC2 saved 30%, as reddit's visitors grow, amazon dropped their prices so the overall bill remains the same
- Postgre is awesome for key/value storage (against BDB, SimpleDB, Memcached)
- memcached awesomeness (30G)
- rendered cache 5GB
- data cache 15GB -- memoization
- permacache 10GB -- precomputed queries
- logged out users -- second class users -- always get cached contents
- so they just give it to Akamai
- but they count 80% of the traffic! darn
- Queues are your friend (they use RabbitMQ)
- Votes, Comments, Thumbnail scraper, Spam, ...
- Do not do things asynchronously, but push job in queue
- Use ctypes to C
- Filters unncessary whitespace
- Discount (markdown in C)
- Memcache
- Profiling: cprofile
- Pylons; glue between routing, paste, wsgi, mako, ...
- we would replace paste
- package maintainers: don't change your APIs plz
- or do a major version change
- sqlalchemy, beautiful soup, routes, pylons
